NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 206
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 4
ACCELERATE NETWORKS LLC 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2007-06-29 206-473-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-06-29 206-473-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-06-25 206-249-1XXX 1000–1999Assigned METROPCS, INC. 5562 DES MOINES WA
2007-06-25 206-249-2XXX 2000–2999Assigned METROPCS, INC. 5562 DES MOINES WA
2007-06-25 206-307-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-06-25 206-533-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 RICHMNDBCH WA
2007-06-12 206-631-2XXX 2000–2999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2007-06-12 206-832-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-05-22 206-631-8XXX 8000–8999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2007-05-16 206-708-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-05-11 206-971-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2007-05-10 206-631-3XXX 3000–3999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-05-10 206-631-4XXX 4000–4999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-05-10 206-631-5XXX 5000–5999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-05-10 206-631-6XXX 6000–6999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-05-10 206-631-7XXX 7000–7999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-05-09 206-629-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E RICHMNDBCH WA
2007-05-07 206-307-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2007-04-30 206-708-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2007-04-30 206-708-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2007-04-30 206-708-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2007-04-27 206-446-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-04-27 206-446-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-04-27 206-446-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-04-27 206-446-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-04-27 206-446-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-04-27 206-446-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-04-27 206-446-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-04-27 206-446-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-04-27 206-446-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-03-29 206-631-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-03-29 206-884-0XXX 0000–0999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-03-29 206-884-1XXX 1000–1999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-03-29 206-884-2XXX 2000–2999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-03-29 206-884-3XXX 3000–3999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-03-29 206-884-4XXX 4000–4999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-03-29 206-884-5XXX 5000–5999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-03-29 206-884-6XXX 6000–6999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-03-29 206-884-7XXX 7000–7999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-03-29 206-884-8XXX 8000–8999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-03-29 206-884-9XXX 9000–9999Assigned QWEST CORPORATION 9638 SEATTLE WA
2007-03-26 206-304-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2007-03-22 206-855-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BAINBDG IS WA
2007-03-08 206-574-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-03-08 206-664-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-03-08 206-694-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-03-08 206-696-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-03-08 206-724-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-03-08 206-733-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-03-08 206-830-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.